negative glow

noun Physics.

the luminous region between the Crookes dark space and the Faraday dark space in a vacuum tube, occurring when the pressure is low.

Origin of negative glow

First recorded in 1885–90

Words nearby negative glow

negative end-expiratory pressure, negative equity, negative eugenics, negative feedback, negative flag, negative glow, negative hallucination, negative income, negative income tax, negative ion, negative lens